刷
shuā
a brush
to paint; to daub; to brush; to scrub; (fig.) to remove; to eliminate (from a contest); to fire (from a job); (onom.) swish; rustle; to swipe (a card); to scroll on (a phone); (gaming) to grind; to farm (for experience points, equipment, levels etc)
body (尸) + cloth (巾) + blade (刂) = scrub and swipe
Picture a cloth held under a body, scraped clean by a blade — the core action is that firm, sweeping stroke. From physical scrubbing, the meaning extended to anything done with a quick pass: swiping a card, scrolling a feed, grinding a game level.
他每天早上都会刷牙。
tā měi tiān zǎo shang dōu huì shuā yá。
He brushes his teeth every morning.
我在地铁里刷了好久的手机。
wǒ zài dì tiě lǐ shuā le hǎo jiǔ de shǒu jī。
I scrolled on my phone for a long time on the subway.
Words with 刷
活字印刷
huó zì yìn shuā
printing with movable type
雨刷
yǔ shuā
windshield wiper
电动牙刷
diàn dòng yá shuā
electric toothbrush
马桶刷
mǎ tǒng shuā
toilet brush
齐刷刷
qí shuā shuā
even
两把刷子
liǎng bǎ shuā zi
ability
凸版印刷
tū bǎn yìn shuā
relief printing
凹凸印刷
āo tū yìn shuā
embossing
刷爆
shuā bào
to max out (a credit card)
刷入
shuā rù
to flash
刷剧
shuā jù
to binge-watch (TV)
刷卡
shuā kǎ
to use a credit card (or swipe card, smart card etc)